今日总结5.26
将复选框数据传递到 Servlet 程序
当需要选择一个以上的选项时，则使用复选框。
下面是一个 HTML 代码实例 checkbox.html，一个带有两个复选框的表单。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<form action="CheckBox" method="POST" target="_blank">
<input type="checkbox" name="runoob" checked="checked" /> 菜鸟教程
<input type="checkbox" name="google" /> Google
<input type="checkbox" name="taobao" checked="checked" /> 淘宝
<input type="submit" value="选择站点" />
</form>
</body>
</html>
下面是 CheckBox.java Servlet 程序，处理 Web 浏览器给出的复选框输入。
package com.runoob.test;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* Servlet implementation class CheckBox
*/
@WebServlet("/CheckBox")
public class CheckBox extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 设置响应内容类型
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
String title = "读取复选框数据";
String docType = "<!DOCTYPE html> \n";
out.println(docType +
"<html>\n" +
"<head><title>" + title + "</title></head>\n" +
"<body bgcolor=\"#f0f0f0\">\n" +
"<h1 align=\"center\">" + title + "</h1>\n" +
"<ul>\n" +
" <li><b>菜鸟按教程标识：</b>: "
+ request.getParameter("runoob") + "\n" +
" <li><b>Google 标识：</b>: "
+ request.getParameter("google") + "\n" +
" <li><b>淘宝标识：</b>: "
+ request.getParameter("taobao") + "\n" +